The effect of surface film in mechanical seal applications-

The influence of surface film in mechanical seal applications

　2017-03-23　　

The influence of surface film in mechanical seal applications

In the actual application of mechanical seals, the surface of the object is always covered with a layer of oxide film and other pollutants. This kind of film on the surface has a certain limit, and the friction on the surface is actually the friction between the surface films . When the surface load is too large or the surface film ruptures due to temperature and other factors, direct contact between metals will occur to form surface stickies.

Although the thickness of the surface film is very thin (only on the order of nm), it has an important effect on friction. The strength of the film is lower than that of the metal material, and it is easy to cut. Too thick surface film will increase friction, because the friction process at this time occurs in the surface film. Temperature will affect the adsorption of the surface film on the surface, and also affect its thickness, thereby changing the role of the surface film and affecting the size of friction.　　373.html,

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